Here is the full list of all 20 THE LAST BLADE 2 achievements.
Play in TIME ATTACK and beat 30 characters in a row
Clear the game as KORYU
Clear the game as SHIGEN NAOE
Clear the game as ZANTETSU
Clear the game as MUKURO
Clear the game as KOJIRO SANADA
Clear the game as HIBIKI TAKAMINE
Clear the game as JUZO KANZAKI
Clear the game as SETSUNA
Clear the game as MORIYA MINAKATA
Clear the game as SHINNOSUKE KAGAMI
Clear the game as RECCA LEE
Clear the game as GENBU NO OKINA
Clear the game as KEIICHIRO WASHIZUKA
Clear the game as HYO AMANO
Clear the game as AKARI ICHIJO
No continue game clear
Clear the game as YUKI
Clear the game as KAEDE
Play in TIME ATTACK and beat 15 characters in a row